Exam 2 Anatomy
Which of the following is correct?
The correct order our middle ear ossicles vibrates is, malleus, incus, and stapes
Which bone feature listed below is a depression on the anterior distal end of the humerus?
coronoid fossa
______ are the type of neurons related to out general senses.
Pseudounipolar neurons
The fold of dura mater found in between the cerebrum and the cerebellum is named:
tentorium cerebelli
Which of the following steps happens first regarding muscle contraction?
A motor neuron releases acetylcholine
Which muscle can both flex the arm and the forearm?
Biceps brachii
Trieps Brachii is opposed in extension of the elbow by which antagonistic muscle?
Brachioradialis
Which brain region confers you the fine motor coordination to take handwritten notes?
Cerebellum
Which of the following statements is true?
Choroid plexus is a vascularized membrane found within all ventricles of the brain
The spinal cord white matter:
Contains lots of myelianted axons
The _________ prevents the lateral displacement of the spinal cord by anchoring the spinal cord to the ______.
Denticulate ligaments; arachnoid and dura mater
Which of the following muscles depresses the mandible when contracting?
Digastric
______ are crucial in the CNS because they ______
Ependymal cells; produce cerebrospinal fluid
Which of the following regions corresponds to the thigh?
Femoral
What are the groups of neuronal bodies called when located in the PNS?
Ganglia
A patient presents with a loss in taste. After several examinations, the doctor concludes that such loss is caused by a damage in one or more cranial nerves. Which of the following cranial nerves and corresponding area could be responsible for this?
Glossopharyngeal nerve; posterior third of the tongue
Which of the following is correct about the subdural space?
It is between the dura mater and arachnoid mater
Which statement below defines spongy bone?
It is composed of trabeculae
During muscle contraction, the thin filaments move towards which part of the sarcomere?
M Line
Excitatory neurotransmitters cause the opening of _______ on the post-synaptic neuron.
Na+ ligated-gated channels
Which of the following statements is correct?
Neurogenesis is the ability of our nervous system to create new neurons from stem cells
The area of the eye where we cant see because it is the point of entrance and exit of blood vessels and the optic nerve is names:
Optic disc
Which spinal nerve is responsible for sensory and motor information on the posterior aspect our upper limbs:
Radius nerve
Which describes the basic connectivity of a reflex arc?
Receptor -> Sensory neuron-> Interneuron-> Motor Neuron -> Effector
Which torso muscles are involved in the flexion of the abdomen?
Rectus abdominis, psoas major
While driving on the highway, Robert had a car accident. After medical examinations and scanning, it was found that he had an injury at the level of cervical vertebrae number 6. What trunk and nerves are likely to be compromised due to the accident?
Superior trunk, musculocutaneous, axillary, radial and median nerves
Which posterior rotator cuff muscles is most superior?
Supraspinatus
Where do we find perception of olfactory stimuli?
Temporal lobe
Which statement about the diaphragm openings is true?
The inferior vena cava passes through the caval opening
Which bone feature can only be found in thoracic vertebrae?
Transverse costal facet
Which of the following muscles causes adduction of the thigh a the hip?
adductor longus
The apical surface of a pseudostratified ciliated epithelium
contains cilia
Somatic motor nerves are also called _______ neurons. They related to the ______
efferent; conscious motor information
The spinal cord:
has 8 cervical spinal nerves
Which of the following statements is correct?
Axons transport the electrical signal towards the terminal button
Acoustic neuroma is a serious nonmalignant tumor that affects CN VIII; Vestibulocochlear nerve. As the tumor grows, it compresses this nerve and causes serious symptoms. What is most likely to occur as a result of this tumor?
Loss of balance and equilibrium
You were entertaining kids at a party. You had your eyes closed and was playing of moving your limbs very fast in all different directions, and you could fell where your limbs were! Since you had your eyes closed, you couldnt see that a kid brought a chair closer and you hit yourself. What two receptors were stimulated?
Proprioreceptors and nociceptors
Which of the following muscle rules is correct?
Origin is always proximal
A patient was diagnosed with dorsal spinal cord injury at the level of C6. What will the patient experience?
Patient will be able to control upper and lower limbs muscles. However, patient will NOT notice changes in temperature in these areas.
Which bundle of white matter is involved with the communication between the primary motor cortex and the lower brain regions such as the brain stem?
Projection fibers
Which medial muscle belongs to the group known as the "hamstrings"?
semitendinosus and semimembrinosus
Which of the following muscles causes plantar flexion?
soleus